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- PDB-8vun: Human GluN1-2A With Fab 008-218 -

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Basic information

Entry
Database: PDB / ID: 8vun
TitleHuman GluN1-2A With Fab 008-218
Components
  • 008-218 Heavy
  • 008-218 Light
  • Glutamate receptor ionotropic, NMDA 1
  • Glutamate receptor ionotropic, NMDA 2A
KeywordsMEMBRANE PROTEIN/IMMUNE SYSTEM / Channel / heterotetramer / receptor / antibody / MEMBRANE PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


glycine-gated cation channel activity / excitatory chemical synaptic transmission / directional locomotion / serotonin metabolic process / Synaptic adhesion-like molecules / protein localization to postsynaptic membrane / sleep / response to glycine / propylene metabolic process / regulation of monoatomic cation transmembrane transport ...glycine-gated cation channel activity / excitatory chemical synaptic transmission / directional locomotion / serotonin metabolic process / Synaptic adhesion-like molecules / protein localization to postsynaptic membrane / sleep / response to glycine / propylene metabolic process / regulation of monoatomic cation transmembrane transport / Assembly and cell surface presentation of NMDA receptors / NMDA glutamate receptor activity / neurotransmitter receptor complex / NMDA selective glutamate receptor complex / Neurexins and neuroligins / ligand-gated sodium channel activity / glutamate binding / glutamate receptor signaling pathway / calcium ion transmembrane import into cytosol / protein heterotetramerization / glycine binding / positive regulation of reactive oxygen species biosynthetic process / startle response / monoatomic cation transmembrane transport / dopamine metabolic process / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of calcium ion transport into cytosol / Long-term potentiation / monoatomic cation transport / excitatory synapse / positive regulation of excitatory postsynaptic potential / monoatomic ion channel complex / regulation of neuronal synaptic plasticity / synaptic cleft / calcium ion homeostasis / MECP2 regulates neuronal receptors and channels / glutamate-gated calcium ion channel activity / neurogenesis / EPHB-mediated forward signaling / sensory perception of pain / sodium ion transmembrane transport / response to amphetamine / ionotropic glutamate receptor signaling pathway / Ras activation upon Ca2+ influx through NMDA receptor / positive regulation of synaptic transmission, glutamatergic / cytoplasmic vesicle membrane / excitatory postsynaptic potential / regulation of membrane potential / synaptic transmission, glutamatergic / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic membrane / protein catabolic process / postsynaptic density membrane / brain development / negative regulation of protein catabolic process / visual learning / calcium ion transmembrane transport / regulation of synaptic plasticity / response to wounding / long-term synaptic potentiation / terminal bouton / memory / synaptic vesicle / signaling receptor activity / amyloid-beta binding / presynaptic membrane / RAF/MAP kinase cascade / response to ethanol / chemical synaptic transmission / dendritic spine / postsynaptic membrane / learning or memory / calmodulin binding / neuron projection / postsynaptic density / positive regulation of apoptotic process / response to xenobiotic stimulus / synapse / dendrite / calcium ion binding / endoplasmic reticulum membrane / protein-containing complex binding / glutamatergic synapse / cell surface / positive regulation of transcription by RNA polymerase II / zinc ion binding / plasma membrane / cytoplasm
Similarity search - Function
Glutamate [NMDA] receptor, epsilon subunit, C-terminal / N-methyl D-aspartate receptor 2B3 C-terminus / : / : / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ligand-gated ion channel / : ...Glutamate [NMDA] receptor, epsilon subunit, C-terminal / N-methyl D-aspartate receptor 2B3 C-terminus / : / : / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ligand-gated ion channel / : / Ionotropic glutamate receptor / Eukaryotic homologues of bacterial periplasmic substrate binding proteins. / Receptor, ligand binding region / Receptor family ligand binding region / Periplasmic binding protein-like I
Similarity search - Domain/homology
Glutamate receptor ionotropic, NMDA 1 / Glutamate receptor ionotropic, NMDA 2A
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.01 Å
AuthorsMichalski, K. / Furukawa, H.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)NS11745, MH085926, F32MH121061, NS113632 United States
CitationJournal: Nat Struct Mol Biol / Year: 2024
Title: Structural and functional mechanisms of anti-NMDAR autoimmune encephalitis.
Authors: Kevin Michalski / Taha Abdulla / Sam Kleeman / Lars Schmidl / Ricardo Gómez / Noriko Simorowski / Francesca Vallese / Harald Prüss / Manfred Heckmann / Christian Geis / Hiro Furukawa /
Abstract: Autoantibodies against neuronal membrane proteins can manifest in autoimmune encephalitis, inducing seizures, cognitive dysfunction and psychosis. Anti-N-methyl-D-aspartate receptor (NMDAR) ...Autoantibodies against neuronal membrane proteins can manifest in autoimmune encephalitis, inducing seizures, cognitive dysfunction and psychosis. Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is the most dominant autoimmune encephalitis; however, insights into how autoantibodies recognize and alter receptor functions remain limited. Here we determined structures of human and rat NMDARs bound to three distinct patient-derived antibodies using single-particle electron cryo-microscopy. These antibodies bind different regions within the amino-terminal domain of the GluN1 subunit. Through electrophysiology, we show that all three autoantibodies acutely and directly reduced NMDAR channel functions in primary neurons. Antibodies show different stoichiometry of binding and antibody-receptor complex formation, which in one antibody, 003-102, also results in reduced synaptic localization of NMDARs. These studies demonstrate mechanisms of diverse epitope recognition and direct channel regulation of anti-NMDAR autoantibodies underlying autoimmune encephalitis.
History
DepositionJan 29, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 11, 2024Provider: repository / Type: Initial release
Revision 1.0Sep 11, 2024Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Sep 11, 2024Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
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Revision 1.0Sep 11, 2024Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
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Revision 1.0Sep 11, 2024Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
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Revision 1.0Sep 11, 2024Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Sep 11, 2024Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Sep 11, 2024Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
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Revision 1.0Sep 11, 2024Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Sep 11, 2024Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.0Sep 11, 2024Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
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Revision 1.0Sep 11, 2024Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1Sep 18, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.pdbx_database_id_PubMed / _citation.title ..._citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _em_admin.last_update
Revision 1.2Oct 16, 2024Group: Data collection / Structure summary
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Item: _em_admin.last_update
Revision 1.3Dec 25, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
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Revision 1.4May 14, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update / _em_software.name
Revision 1.1May 14, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Glutamate receptor ionotropic, NMDA 1
B: Glutamate receptor ionotropic, NMDA 2A
C: Glutamate receptor ionotropic, NMDA 1
D: Glutamate receptor ionotropic, NMDA 2A
G: 008-218 Heavy
I: 008-218 Light
K: 008-218 Heavy
L: 008-218 Light


Theoretical massNumber of molelcules
Total (without water)456,7528
Polymers456,7528
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein Glutamate receptor ionotropic, NMDA 1 / GluN1 / Glutamate [NMDA] receptor subunit zeta-1 / N-methyl-D-aspartate receptor subunit NR1 / NMD-R1


Mass: 91923.094 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GRIN1, NMDAR1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q05586
#2: Protein Glutamate receptor ionotropic, NMDA 2A / GluN2A / Glutamate [NMDA] receptor subunit epsilon-1 / N-methyl D-aspartate receptor subtype 2A / ...GluN2A / Glutamate [NMDA] receptor subunit epsilon-1 / N-methyl D-aspartate receptor subtype 2A / NMDAR2A / NR2A / hNR2A


Mass: 90704.898 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GRIN2A, NMDAR2A / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q12879
#3: Antibody 008-218 Heavy


Mass: 23367.164 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
#4: Protein 008-218 Light


Mass: 22380.652 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human)
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Human GluN1-2A With Fab 008-218 / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: OTHER / Nominal defocus max: 2200 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM software
IDNameCategory
8PHENIXmodel refinement
13cryoSPARC3D reconstruction
CTF correctionType: NONE
3D reconstructionResolution: 4.01 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 96610 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00429427
ELECTRON MICROSCOPYf_angle_d0.70340225
ELECTRON MICROSCOPYf_dihedral_angle_d4.6394229
ELECTRON MICROSCOPYf_chiral_restr0.0424717
ELECTRON MICROSCOPYf_plane_restr0.0045145

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